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Table 2 Perceived values for the three groups

From: Role of intervention programs to increase influenza vaccination in Israel

Perceived values Questionnaire items* Acceptors(22%) Conditional acceptors(44%) Non-acceptors(34%)
   Mean 95% CI Mean 95% CI Mean 95% CI
Perceived likelihood of infection Generally speaking, what are the chances that you will contract seasonal influenza if you do not get vaccinated in that season? 6.57 (6.24, 6.89) 5.22 (4.75,5.70) 4.16 (3.82,4.49)
Perceived risk reduction ** a. Generally speaking, what are the chances that you will contract seasonal influenza if you get vaccinated in that season? 3.13 (2.72,3.53) 1.61 (1.01,2.21) 0.45 (0.06, 0.83)
b. Generally speaking, what are the chances that you will contract seasonal influenza if you do not get vaccinated in that season?
Perceived severity ** a. Do you feel that it is dangerous for you to contract seasonal influenza? 3.71 (3.26,4.16) 1.03 (0.42,1.64) 0.06 (−0.38,0.50)
b. Do you feel that it is dangerous for you to get influenza vaccination?
  1. *All questions were ranked on a 10 point Likert scale where 0 means no chance of becoming infected (no hazard at all) and 10 means definitely will become ill (extremely high hazard).
  2. **The perceived risk and severity reductions were computed as the difference between the two questionnaire items. The difference could be negative as several interviewees pointed out that vaccination might be more harmful than infection.